7. Conclusions
In the second year that companies were subject to fleet average NOx requirements under the Regulations, a total of twenty-one companies submitted reports for 302 test groups comprising 1 513 327 vehicles of the 2005 model year manufactured or imported for the purpose of sale in Canada. The average NOx value for the entire Canadian LDV/LLDT fleet is 0.1432473 grams/mile compared to a fleet average NOx standard of 0.19 grams/mile. The average NOx value for the entire Canadian HLDT/MDPV fleet is 0.334566 grams/mile compared to a fleet average NOx standard of 0.43 grams/mile. The NOx values for both overall fleets remain better than the corresponding fleet average NOx standards, consistent with the environmental performance objectives of the Regulations.